Abstract: The wheat midge, Sitodiplosis mosellana, is one of the most important pests in China. The larvae of this pest feed on the developing wheat kernel and can cause serious yield losses in wheat, even no harvest. This pest has the characteristics of small body, long diapause duration and concealed damage. In recent years, the wheat midge has been affected by global climate change, change of cropping system, wheat cultivars and human activities, which cause a great change in the occurrence of this pest, with an expansion tendency to Northeast China. This midge is mainly distributed in the wheat production areas in the northern China. Its occurrence is hidden, intermittent, local and abrupt, and is affected by various factors, such as the base number of its population, ecological factors, measurements of agricultural productivity and human activities. Since the 21st century, the occurrence of this midge has changed a lot, and it was mainly distributed in the winter wheat production areas (latitude 27°-43°N). Polymorphisms in the diapause, the resistance mechanism of wheat to this midge, breeding of the resistant wheat varieties and exploitation of natural enemies are the main directions of future researches, and such studies as the molecular mechanisms of diapause, the law of occurrence and damage, forecasting, integrated control and the plant-midge-natural enemy relationship should be strengthened in the future. This review provides references for further understanding of the laws of occurrence and damage, forecasting and the integrated control of S. mosellana in China.

Key words: Sitodiplosis mosellana, wheat, occurrence, damage, influencing factors, integrated control